CN207762038U - A kind of high-altitude operation vehicle leveling hydraulic loop - Google Patents
A kind of high-altitude operation vehicle leveling hydraulic loop Download PDFInfo
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- CN207762038U CN207762038U CN201721849890.9U CN201721849890U CN207762038U CN 207762038 U CN207762038 U CN 207762038U CN 201721849890 U CN201721849890 U CN 201721849890U CN 207762038 U CN207762038 U CN 207762038U
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- leveling
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- directional control
- control valve
- solenoid directional
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Abstract
The utility model is related to one kind, the utility model discloses a kind of high-altitude operation vehicle leveling hydraulic loops, including active leveling cyclinder and auxiliary leveling cyclinder, the actuating cylinder rod chamber is connected to auxiliary leveling cyclinder rod chamber, the auxiliary leveling cyclinder rod chamber is connected to the B2 of three-position four-way valve mouths, the active leveling cyclinder rodless cavity is connected to auxiliary leveling cyclinder rodless cavity, the leveling cyclinder rodless cavity is connected to the A2 of three-position four-way valve mouths, the Q mouths of the solenoid directional control valve are connected to oil outlet pipe, the P mouths of the solenoid directional control valve are connected to oil inlet pipe, on the R mouths of the solenoid directional control valve and the working connection of S mouthfuls of connections and it is connected with overflow valve, it is parallel with Bidirectional balanced valve on the pipeline of the actuating cylinder rodless cavity and the leveling cyclinder rod chamber；High-altitude operation vehicle leveling hydraulic loop provided by the utility model, stable and reliable operation, service life is long, reasonable design, simple in structure, applied widely, and high degree of automation, work efficiency is high.
Description
Technical field
The utility model is related to the utility model to belong to technical field of engineering machinery, be related to a kind of hydraulic circuit, specifically relate to
And a kind of high-altitude operation vehicle leveling hydraulic loop.
Background technology
High-altitude operation vehicle be it is a kind of staff, power tool etc. are transported to by main arm telescoping and operation basket it is specified
Air position carries out the advanced dedicated aerial operation machine of the operations such as installation, maintenance.High-altitude operation vehicle belongs to engineering machinery, is
A kind of very important high-altitude construction equipment.Leveling system is distinctive system on high-altitude operation vehicle, when high-altitude operation vehicle carries out
When luffing acts, operation basket needs leveling.The operation basket of high-altitude operation vehicle generally in several meters to tens meters of the aerial work of height, is made
The work of industry personnel is all completed on operation basket.Manned high-altitude working safety requirement is higher than common engineering vehicle, i.e. institute
It calls " high security ", it is therefore necessary to ensure that the level of operation basket, the quality of levelling effect are directly related to working at height personnel's
The comfort level of personal safety and operating environment, the stability of conventional use of levelling device hydraulic circuit and safety cannot be made us
It is satisfied.
Traditional leveling method mostly uses electrical leveling, and the variation of principal arm angle is detected with horizon sensor, and control ratio is changed
To the break-make and size of valve, to control the direction of action and speed of leveling cyclinder.To ensure the variation of principal arm and the change of operation basket
Change is synchronous.And horizon sensor is easy high failure rate, proportioning valve is easy clamping stagnation again.Because leveling cyclinder passes through proportional valve control
Speed is susceptible to non-continuous event.
Invention content
The purpose of the utility model is to overcome above-mentioned deficiencies in the prior art, provide a kind of high-altitude operation vehicle leveling liquid
Road is pushed back, stable and reliable operation, service life is long, reasonable design, simple in structure, applied widely, high degree of automation, work
Make efficient.
Technical problem to be solved in the utility model is achieved through the following technical solutions：A kind of high-altitude operation vehicle leveling
Hydraulic circuit, including actuating cylinder and leveling cyclinder, the actuating cylinder rod chamber are connected to leveling cyclinder rod chamber, the tune
Flat cylinder rod chamber is connected to the R of solenoid directional control valve mouths, and the actuating cylinder rodless cavity is connected to leveling cyclinder rodless cavity, described
Leveling cyclinder rodless cavity is connected to the S of solenoid directional control valve mouths, and the Q mouths of the solenoid directional control valve are connected to oil outlet pipe, the electricity
The P mouths of magnetic reversal valve are connected to oil inlet pipe, on the working connection of the R mouths of the solenoid directional control valve and S mouthfuls of connections and are connected with overflow
It is parallel with Bidirectional balanced valve on the pipeline of valve, the actuating cylinder rodless cavity and the leveling cyclinder rod chamber.
Further, the S mouths of the solenoid directional control valve are provided with hydraulic lock outside with R mouthfuls.
Further, the P mouths of the solenoid directional control valve are outer is provided with speed governing valve.
Further, the solenoid directional control valve is three-position four-way electromagnetic directional valve.
1, further, when operation basket is in horizontality, solenoid directional control valve is in middle position；When principal arm luffing, leveling
Oil cylinder (2) follows principal arm raising and lowering, and actuating cylinder (1) also changes with the variation of leveling cyclinder (2), to ensure work
Basket is constantly in horizontality.
Further, the actuating cylinder is mounted between folding arm and principal arm, and the actuating cylinder is mounted on principal arm and work
Make between basket.
Further, the actuating cylinder is identical as leveling cylinder structure size.
For the utility model compares the prior art, high-altitude operation vehicle leveling hydraulic loop has Bidirectional balanced valve, makes this
Stability and safety are very high in the process of running for system, and service life is long.The high-altitude operation vehicle levelling device hydraulic circuit
Reasonable design, arrangement is relatively simple, and installation and debugging are more convenient, and leveling lag is small, and regulating time is short, and leveling process safety is just
Victory is not necessarily to human intervention.While action needed for completion, keep the structure of telescopic arm more simple, volume smaller, weight is more
Gently.And the oscillation during electro-hydraulic leveling and discontinuous problem are efficiently solved, improve the comfort level of leveling.
The high-altitude operation vehicle leveling hydraulic loop is applicable not only to the leveling of high-lift operation car basket, applies also for it
It is needed in stability and the higher leveling system of security requirement, thus its scope of application is very wide.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Attached drawing 1 show a kind of high-altitude operation vehicle leveling hydraulic loop schematic diagram of the utility model.
Specific implementation mode
The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not rushing
In the case of prominent, the features in the embodiments and the embodiments of the present application can be combined with each other.
As shown in Figure 1, high-altitude operation vehicle uses hydrostatic levelling mechanism, with two equirotal oil cylinders, one and master
Arm amplitude oil cylinder parallel connection is known as leveling cyclinder 2, and one connect referred to as actuating cylinder 1 with operation basket.And two oil cylinders without bar
Chamber and rod chamber are parallel with one another.Leveling cyclinder 2 is driven when amplitude oil cylinder acts, actuating cylinder 1 is in parallel with leveling cyclinder 2, actively
Oil cylinder 1 also follows one to change.When amplitude oil cylinder acts in this way, the variation of principal arm is synchronous with the variation of operation basket.
1 rod chamber of the actuating cylinder is connected to leveling cyclinder rod chamber, 2 rod chamber of the leveling cyclinder and electromagnetic switch
The S mouths of valve 6 are connected to, and 1 rodless cavity of the actuating cylinder is connected to 2 rodless cavity of leveling cyclinder, 2 rodless cavity of the leveling cyclinder and electricity
The R mouths of magnetic reversal valve 6 are connected to, and Q mouths of the solenoid directional control valve 6 is connected to oil outlet pipe, the P mouths of the solenoid directional control valve 6 and
Oil inlet pipe is connected to, and the R mouths of the solenoid directional control valve 6 are parallel with overflow valve 4 and Bidirectional balanced valve 3, the actuating cylinder with S mouthfuls
It is parallel with Bidirectional balanced valve 3 on the pipeline of 2 rod chamber of 1 rodless cavity and the leveling cyclinder.
Preferably, the P mouths of the solenoid directional control valve 6 are outer is provided with one-way speed-regulating valve 7.
Preferably, the solenoid directional control valve 6 is three-position four-way electromagnetic directional valve.
The automatic horizontal control system of the high-altitude operation vehicle proposed through the invention, solves that leveling cyclinder leveling is discontinuous to ask
Topic realizes the levelling function of working arm variable phase angle workbench within the scope of large space, leveling is improved by hydraulic control leveling mode
The fast-response and control accuracy of hydraulic system reduce and lead to the problem of failure rate because of electric-control system integrity problem.
The automatic leveling hydraulic circuit of high-altitude operation vehicle of the present invention is in addition to it can be applied to large space working at height, also
It can be applied in fire fighting truck.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of high-altitude operation vehicle leveling hydraulic loop, including actuating cylinder (1) and leveling cyclinder (2), it is characterised in that：It is described
Actuating cylinder (1) rod chamber is connected to leveling cyclinder (2) rod chamber, leveling cyclinder (2) rod chamber and solenoid directional control valve (6)
The connection of R mouths, actuating cylinder (1) rodless cavity is connected to leveling cyclinder (2) rodless cavity, leveling cyclinder (2) rodless cavity
It is connected to the S mouths of solenoid directional control valve (6), the Q mouths of the solenoid directional control valve (6) are connected to oil outlet pipe, the solenoid directional control valve
(6) P mouths are connected to oil inlet pipe, on the working connection of the R mouths of the solenoid directional control valve (6) and S mouthfuls of connections and are connected with overflow valve
(4), it is parallel with Bidirectional balanced valve (3) on the pipeline of actuating cylinder (1) rodless cavity and the leveling cyclinder (2) rod chamber.
2. high-altitude operation vehicle leveling hydraulic loop described in accordance with the claim 1, it is characterised in that：The solenoid directional control valve (6)
S mouths and R mouthful outside be provided with hydraulic lock (5).
3. high-altitude operation vehicle leveling hydraulic loop described in accordance with the claim 1, it is characterised in that：The solenoid directional control valve (6)
P mouths outer be provided with speed governing valve (7).
4. according to high-altitude operation vehicle leveling hydraulic loop as claimed in claim 1 or 2, it is characterised in that：The solenoid directional control valve
(6) it is three-position four-way electromagnetic directional valve.
5. high-altitude operation vehicle leveling hydraulic loop as claimed in claim 1 or 2, it is characterised in that：Operation basket is in horizontal
When state, solenoid directional control valve (6) is in middle position；When principal arm luffing, leveling cyclinder (2) follows principal arm raising and lowering, actively oil
Cylinder (1) follows the variation of leveling cyclinder (2) and is changed, to ensure that operation basket is constantly in horizontality.
6. high-altitude operation vehicle leveling hydraulic loop as claimed in claim 4, it is characterised in that：Leveling cyclinder (2) installation
Between folding arm and principal arm, the actuating cylinder (1) is mounted between working arm and operation basket.
7. high-altitude operation vehicle leveling hydraulic loop as described in claim 1, it is characterised in that：The actuating cylinder (1) and tune
Flat cylinder (2) structure size is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849890.9U CN207762038U (en) | 2017-12-26 | 2017-12-26 | A kind of high-altitude operation vehicle leveling hydraulic loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849890.9U CN207762038U (en) | 2017-12-26 | 2017-12-26 | A kind of high-altitude operation vehicle leveling hydraulic loop |
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| Publication Number | Publication Date |
|---|---|
| CN207762038U true CN207762038U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721849890.9U Active CN207762038U (en) | 2017-12-26 | 2017-12-26 | A kind of high-altitude operation vehicle leveling hydraulic loop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864019A (en) * | 2019-11-28 | 2020-03-06 | 徐州海伦哲特种车辆有限公司 | Digital hydraulic leveling system of working platform of overhead working truck |
| CN115231485A (en) * | 2022-07-18 | 2022-10-25 | 湖南星邦智能装备股份有限公司 | Leveling hydraulic control system and aerial work platform |
-
2017
- 2017-12-26 CN CN201721849890.9U patent/CN207762038U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864019A (en) * | 2019-11-28 | 2020-03-06 | 徐州海伦哲特种车辆有限公司 | Digital hydraulic leveling system of working platform of overhead working truck |
| CN115231485A (en) * | 2022-07-18 | 2022-10-25 | 湖南星邦智能装备股份有限公司 | Leveling hydraulic control system and aerial work platform |
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